Windows 11 Search Not Working? Try These Fixes

Restart your PC and Windows Search, update Windows, check the indexing status, folders and search service, then rebuild the index or reset Windows Search.

Quick Answer

Restart your PC, then check for Windows updates. If the search box is unresponsive, press Ctrl+Alt+Delete, select Task Manager, then Details, right-click SearchHost.exe and select End task; Windows Search starts again the next time you search. If search works but doesn’t find your files, open Settings, select Privacy & security, then Searching Windows, and check whether indexing shows Indexing complete.

Common causes

  • Indexing that’s still adding new or recently changed files
  • Indexing paused to conserve battery power
  • A PC too busy to index because of high disk or CPU use
  • Low memory or too little free disk space for indexing
  • Indexing paused by another app, such as during Game mode
  • A Windows Search service turned off by some antivirus or “Optimize your PC” apps
  • Too many indexed items or a very large Outlook mailbox
  • File contents left out of the index, so only names and properties are searchable

Step-by-Step Solutions

Start with the quick steps at the top, try searching again after each one, and leave rebuilding the index and resetting Windows Search for last.

  1. Step 1: Restart your PC

    Restarting your PC also installs any pending updates.

    Restart your PC, then try searching again.

  2. Step 2: Check for Windows updates

    Installing the latest updates is one of Microsoft’s recommended fixes for search problems.

    Select Start, then Settings, then Windows Update, then Check for Windows updates.

    If any updates are available, select Download & install. If you’re prompted to, restart your PC to apply them.

  3. Step 4: Restart Windows Font Cache Service

    Microsoft notes that restarting this service sometimes resolves Windows Search issues.

    In the search box on the taskbar, enter services.msc to open the Services console. In the right pane, right-click Windows Font Cache Service and select Stop.

    Try to search again. Then, in the Services console, right-click Windows Font Cache Service and select Start.

  4. Step 5: Check the indexing status

    If search opens but misses files, the indexing status tells you whether Windows has finished indexing.

    Open Settings, select Privacy & security, then Searching Windows, and check your search indexing status. When indexing has finished, it shows Indexing complete.

    If you see a different message, here’s what to do:

    • “Indexing in progress. Search results might not be complete during this time.” Windows is adding new files to the index, which could take a few hours. Leave your PC turned on and connected to power.
    • “Indexing is paused to conserve battery power.” Connect your PC to power and charge the battery. Indexing resumes after the battery has sufficiently charged.
    • “Indexing is waiting for computer to become idle.” Your PC is too busy to keep indexing. If disk or CPU use is high, indexing stops to leave room for what you’re doing.
    • “Insufficient memory to continue indexing. Search results might not be complete.” Use Task Manager to find apps that use a lot of memory and close them if you can.
    • “Insufficient disk space to continue indexing. Search results might not be complete.” Make sure there’s more than 1 GB of free space on the disk.
    • “Indexing is paused by an external application.” Make sure your PC isn’t in Game mode, then restart the Windows Search service in Task Manager or services.msc.
    • “Indexing is paused.” Indexing was paused from the Windows Search settings page and resumes 15 minutes later. To resume sooner, restart the Windows Search service.
    Good to know

    When you first run indexing, it can take up to a couple hours to complete. After that, it runs in the background and only re-indexes updated data.

  5. Step 6: Make sure your folders are indexed

    Search only finds files quickly in the locations Windows indexes.

    Open Settings, select Privacy & security, then choose Search. Under Find my files, Windows offers two search indexing modes: Classic and Enhanced.

    Classic indexes your Documents, Pictures and Music folders plus the desktop by default. To add another location, select Customize search locations, then select Modify and select the folders you want to add.

    Enhanced indexes your entire PC, including all user folders and files. It gives more comprehensive search results but may use more system resources.

    Good to know

    If you can find a file by name but not by words inside it, check how that file type is indexed. In Indexing Options, select Advanced, then the File Types tab, select the file type and choose an option under How should this file be indexed?

  6. Step 7: Check the Windows Search service

    If indexing isn’t running, the Windows Search service may be stopped or turned off.

    If you just upgraded Windows, wait five minutes for the Windows Search service to start. The service pauses during an upgrade.

    Otherwise, open services.msc and scroll to Windows Search. It should show Status: Running and Startup Type: Automatic (Delayed Start). To change its settings, right-click Windows Search and select Properties.

    Some antivirus programs and “Optimize your PC” apps turn off the Windows Search service. Microsoft recommends not running such apps if you want to use Search, or checking the service after you run them.

  7. Step 8: Rebuild the search index

    Rebuilding makes Windows create the index again, which can take up to 24 hours.

    To check how many items are indexed, open Settings, select Privacy & security, then Searching Windows, and check the value of Indexed. If more than 400,000 items are indexed, you may begin to see performance issues. To index fewer items, select Add an excluded folder on the same page, then select a folder to exclude.

    To rebuild the index, open Settings, select Privacy & security, then Searching Windows, then Advanced indexing options. Select Advanced, then Rebuild.

    Let the Indexer run for up to 24 hours to rebuild the index.

    Good to know

    By default, Outlook mailboxes on your PC are indexed too. A mailbox with more than 6 million items can slow the Indexer down.

Still can’t search in Windows 11?

If none of these steps fix the problem, send feedback to Microsoft in the Feedback Hub with a description of the problem, screenshots and anything else that might help, in the Desktop Environment category and the Search subcategory. On a work or school PC, contact your IT team or administrator if scripts are blocked or a policy pauses indexing on battery power.

Back up your files first: If indexing shows “Index is performing maintenance. Please wait.”, give it time; it can take up to 30 minutes on a slow computer. Problems writing the index usually come before a drive failure, so make sure your personal files are backed up.

Frequently Asked Questions

Does resetting Windows Search delete my files?

No. Resetting Windows Search doesn’t affect your files, though search results may be less relevant for a while afterward.

How long does Windows search indexing take?

The first indexing run can take up to a couple hours. Rebuilding the index can take up to 24 hours. While indexing is in progress, leave your PC turned on and connected to power.

Why can I find a file by name but not by the words inside it?

Windows can index a file type by its properties only, which keeps file names searchable but not the contents. You can change this for each file type on the File Types tab in Indexing Options.

Why doesn’t search find files outside my Documents folder?

In Classic mode, Windows indexes only your Documents, Pictures and Music folders plus the desktop by default. Add more locations with Customize search locations, or switch to Enhanced to index your whole PC.

Can antivirus or PC cleanup apps stop Windows Search working?

Yes. Some antivirus programs and “Optimize your PC” apps turn off the Windows Search service, so check that the service is running after you use them.

Sources & review

This guide was checked against Microsoft’s official support instructions on October 1, 2026. Device options can change with software updates.

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